can you roll back after install an update? - Samsung Galaxy A71 Questions & Answers

Questions for the pro users here.

Probably if download the earlier build although haven't attempted it might be a limitation on 10 now not able to but no harm trying it
Sent from my SM-A715F using Tapatalk

As long as the binary is the same it's fine
---------- Post added at 23:21 ---------- Previous post was at 23:01 ----------
Example of differents binaries:
If the firmware you use is: A715FXXU2ATB2
And you want to use this: A715FXXU1ATA7
It wont let you, why? Cause of the U1 and U2.
You can move from any firmware to any firmware as long as the binary number is the same, but you can't downgrade from U2 to U1 , or U6 to U5 , U3 to U2 etc. Sometimes it's named S1 or S2 but it's the same thing.
Example for my device firmware :
A705FNXXU5BTB9
A705 is device codename FN is the EU variant, XX is replaced by the country code (CSC) example: OXM (SEK), U5 is the binary number, B mean the android version, Example A is first android update, B mean android have been updated once, C means android have been updated twice, T means the month ,R is 2018 S is 2019, T is 2020 etc. B is for February, 9 means the firmware have been built 9 times , Z means it been built 35 times.

Related

Samsung Galaxy note 8 pie update

Hey
I need help
I have Samsung Galaxy note 8 international f model
I did not receive pie update
What can I do I am worried
Ahmadwaqas said:
Hey
I need help
I have Samsung Galaxy note 8 international f model
I did not receive pie update
What can I do I am worried
Click to expand...
Click to collapse
If you have a PC and you are on a OXM multi csc firmware download the latest pie firmware for the oxm firmware and use Odin on PC to flash pie.
What is your CSC and your current firmware? (Dial *#1234# and read the ap and csc line.) List the 3 letter CSC and the CSC line from the dial prompte .
You should be getting it soon. As OS releases are dependent on the device's country of origin. Of course you could just install Pie manually via Odin, just make sure the OS model number you are planning to install matches that to your device's model number.
Please check
AP : N950FXXU4CRH3
CSC : N950FOXM4CRGA
CP : N950FXXU4CRG8
Model :SM-N950F/DS
Ahmadwaqas said:
AP : N950FXXU4CRH3
CSC : N950FOXM4CRGA
CP : N950FXXU4CRG8
Model :SM-N950F/DS
Click to expand...
Click to collapse
Since your on an oxm multi csc firmware use Odin to flash the latest pie but if you want to go back to oreo don't flash the March pie update . Only flash the first pie release. On the March update they said you can't go back to earlier release. So I wouldn't try it unless you like pie and don't want to go back to oreo.
I would flash the first pie release to see if you like it first. But be warned though you might have to factory reset if you go back to oreo if you get any issues with system.

Looking for android 10 firmware

Trying to find android 10 firmware for my phone. n960fxxs4csj1 build n960fxxs4csk2 uk model. I cannot find the latest firmware for my phone
Code:
Checking firmware for SM-N960F/XTC/N960FXXS5DTB6/N960FOXM5DTBB/N960FXXS5DTB6/N960FXXS5DTB6
Model: SM-N960F
Version: N960FXXS5DTB6/N960FOXM5DTBB/N960FXXS5DTB6/N960FXXS5DTB6
OS: Q(Android 10)
Filename: SM-N960F_2_20200227153055_cahn1l2yc1_fac.zip.enc4
Size: 5383418496 bytes
LogicValue: 7l3ysnvv68xop87m
i was able to find the latest firmware using the samfirm tool for windows.
https://forum.xda-developers.com/galaxy-tab-s/general/tool-samfirm-samsung-firmware-t2988647
download and install the required files and it will download at whatever speed your internet will allow. (fast)
or
You can download directly from https://www.sammobile.com/samsung/galaxy-note9/firmware/#SM-N960F but download speeds are slow.
Hi
Can I use this one on my phone but my baseband and build don’t match any of these firmware
Model SM-N960F
Model name Galaxy Note9
Country
Version Android 10
Changelist 17594460
Build date Fri, 14 Feb 2020 07:19:38 +0000
Security Patch Level 2020-03-01
Product code XEU
PDA N960FXXS5DTB6
CSC N960FOXM5DTB6
handy77 said:
Hi
Can I use this one on my phone but my baseband and build don’t match any of these firmware
Model SM-N960F
Model name Galaxy Note9
Country
Version Android 10
Changelist 17594460
Build date Fri, 14 Feb 2020 07:19:38 +0000
Security Patch Level 2020-03-01
Product code XEU
PDA N960FXXS5DTB6
CSC N960FOXM5DTB6
Click to expand...
Click to collapse
Yeah those are the same firmware with different carrier regions.
I'm on the same firmware as you. My advice is don't bother to upgrade, but that's just personal choice.
I'm no expert, but my understanding is once you upgrade to the firmware listed above you cannot go back.
If your need to upgrade with the option of going back you need this:
Version: N960FXXU4DSLB/N960FOXM4DSLA/N960FXXU4DSLA
This is the version 10 my Note 9 keeps trying to push my way.
In no expert, so happy to stand corrected.
Gasman said:
I'm on the same firmware as you. My advice is don't bother to upgrade, but that's just personal choice.
I'm no expert, but my understanding is once you upgrade to the firmware listed above you cannot go back.
If your need to upgrade with the option of going back you need this:
Version: N960FXXU4DSLB/N960FOXM4DSLA/N960FXXU4DSLA
This is the version 10 my Note 9 keeps trying to push my way.
In no expert, so happy to stand corrected.
Click to expand...
Click to collapse
if the intent is to be able to odin back to previous versions, then yes, the newest update in 5 where as they and you are on 4. But if you read the news latley, there's nothing but hacks and vulnerabilities being discovered daily. so you can choose to have the most secure device possible (update to latest version) or you can risk it and run older firmware with the intent of being able to go back to even more insecure F/W versions. Would highly suggest going to the lastest firmware if you log into anything sensitive iwth your credit card, such as amazon, ebay, banking apps, ect.

my note 9 does not update it is sprint version n960u

I bought this device for a page and the phone is sprint version but it is released, the problem is that no update arrives and I already tried to update it through odin but they told me that I cannot install the most recent version because the binary number does not Match, can someone help me please
CarlosDorantes said:
I bought this device for a page and the phone is sprint version but it is released, the problem is that no update arrives and I already tried to update it through odin but they told me that I cannot install the most recent version because the binary number does not Match, can someone help me please
Click to expand...
Click to collapse
What exact model is the phone? (Settings > About Phone > Model number)
Go to Settings again, hit "Software Update." Then write down at least the date of the last security patch install (beneath "Your software is up to date" message).
If your phone is (like mine) one ending in U1, that means it is an unlocked phone. It may be waiting for the newest update which isn't out yet on my T-Mobile (and maybe your Sprint, since T-Mobile owns Sprint now). We're stuck waiting.
Download phone information app from play store. Check csc and do a refurbishment check with app. Post build number and csc information...that will help others figure out where to tell you to start.
Sent from my SM-N960U using Tapatalk
my model is SM-N96OU and the last update was on August 1, 2019
my build number is PPR1.180610.011.N960USQS2CSGB
the product code is: SM-N960UZBAXAA
CSC code is: XAA
CSC country: usa / us
https://forum.xda-developers.com/galaxy-note-9/help/unlocked-att-note-9-wont-upadte-t4141467
---------- Post added at 02:12 AM ---------- Previous post was at 02:11 AM ----------
I just posted about this a few threads down I followed his instructions and it worked flawless I also wouldn't get updates either mine was dec 2019 but that worked for me im at&t tho message the guy he would help you im sure ?:good:

WIll flashing offical stock rom using ODIN replace modified IMEI with original?

I purchased a used samsung galaxy note 9 from a second hand seller to save costs. Software showed that it was n90fd and it had two separate IMEI as well. I went to download mode and it turns out the model is N960N and imei of the phone has been changed and two imei appear in the software. I am on android 9 and some pie rom with jan 2019 security patch from Dr. Ketan has been installed which does not allow me to update to andoid 10. My question is that if I flash stock n950N rom over it, will it restore my original IMEI or retain both modified IMEI? Will the calls etc still work because I plan to flash official pie rom using ODIN and update through OTA to the android 10 and I do not want to lose the dual sim functionality.
see similar, 2nd post in particular
https://forum.xda-developers.com/galaxy-note-9/help/how-to-restore-imei-samsung-galaxy-note-t4154585
raul6 said:
see similar, 2nd post in particular
https://forum.xda-developers.com/galaxy-note-9/help/how-to-restore-imei-samsung-galaxy-note-t4154585
Click to expand...
Click to collapse
Thanks for the response but the tagged thread does not answer my question
From IMEI problems on other Samsung models .
For those that failed to back up EFS , try flashing original stock firmware via Odin .
Worth a try .
You only need to back up the EFS and ODM partitions!
---------- Post added at 02:56 AM ---------- Previous post was at 02:54 AM ----------
Only need to flash the BL+CP file via ODIN to update to Android 10! There is no need to update the stock ROM completely through ODIN!
Didn't you see the Dr. Ketan explanation? If you want to update from Android 9 to Android 10, you must first refresh the BL file of Android 10!
pichai said:
You only need to back up the EFS and ODM partitions!
---------- Post added at 02:56 AM ---------- Previous post was at 02:54 AM ----------
Only need to flash the BL+CP file via ODIN to update to Android 10! There is no need to update the stock ROM completely through ODIN!
Didn't you see the Dr. Ketan explanation? If you want to update from Android 9 to Android 10, you must first refresh the BL file of Android 10!
Click to expand...
Click to collapse
Where can I only download the BL and CP file for n956n and will flashing it affect my IMEI in any way?
munirshah77 said:
Where can I only download the BL and CP file for n956n and will flashing it affect my IMEI in any way?
Click to expand...
Click to collapse
What is 956?
https://www.mediafire.com/folder/ks7q9khntaztf/N960#ks7q9khntaztf
Or use samfirm
Will you check the forum description? ? ? ? ? ? ?
https://forum.xda-developers.com/ga...26-08-18-n960-dr-ketan-rom-jio-volte-t3834184
n960n. it was a typo

Changing CSC to receive OTA updates

I bought myself a supposedly brand-new, in-box SM-N960F/DS (so this is the dual-SIM version of the Note 9) using the Exynos 9810 from an online retailer in SEA. As it turns out, the phone has an Android patch level of Nov 2019, so I wanted to update it to the latest Android version available for the phone (Nov 2021). And that's when I found out that my set was an imported set from some other country in SEA, and about Samsung's *wonderful* CSC region-locking 'feature'.
Okay, so basically, I'm going to try to go to a Samsung service centre to see if they can change the CSC on my new phone so that I can receive OTA updates. Failing which, and this is the reason I am making this post, I would like to change the CSC myself and update the phone - using Odin, if I have to.
The phone is using what I believe to be stock ROM with a baseband version of N960FXXS4CSJ1, and a Service provider SW ver. of SAOMC_SM-N960F_OXM_XXV_PP_0010. From what I was able to gather, this means that I have a multi-CSC (OXM) firmware, but it is currently set to generic Vietnam (XXV). The two CSC combinations currently reported are XXV/XME,XXV/SKC.
Now, I have tried to change the CSC by using Google Phone and dialling the *#*#27262826#*#*, and that didn't work for whatever reason. I tried the *#272*IMEI#, and that didn't work either, for whatever reason. I guess I will have to flash a new firmware in myself.
I currently have downloaded via Bifrost both the XXV and the XME latest firmware versions (Security level Nov 2021 as of now). I do not intend to root the phone or anything like that (that said, AIDA64 reports that my device is rooted, for whatever reason). I have also downloaded the Samsung USB drivers for Windows and Odin 3.14.1 (both patched and unpatched). I don't know where I can get the OXM version of the firmware, which would be best, because dual-SIM allows me to slot in an Aussie SIM when I do travel over there.
I would greatly appreciate it if I could be advised as to whether I can simply flash the XME firmware and then receive OTA updates thereafter, or do I flash the XXV firmware and keep a watchout for future updates manually. Or, indeed, what my other options are. Step-by-step instructions would be nice, although I intend on following the tutorial as listed here: https://www.xda-developers.com/how-to-update-samsung-galaxy-smartphone/
Hopefully, I will retain the dual-SIM functionality, along with VoLTE, Wi-Fi Calling, Call recording, and so on and so forth.
Thanks in advance!
just download latest firmware for your phone from here https://www.sammobile.com/firmwares/ (you can select country and operator)
put your phone on download mode and flash with odin. Done!
Does that mean I can disregard what the current CSC is, and I can choose whichever CSC (country) I am currently in regardless of what the Note 9 is set to at the moment?
Greetings all; would appreciate any insights as to whether it will be safe to flash the XME or XXV firmware into my device. I'm more than happy to provide additional information if that would help.

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